Subject + 拥有 + 最多 + 的 + Noun
最多 (zuìduō) is an adjective or adverb meaning "the most" in terms of quantity. It is formed from 最 (most) and 多 (many/much) and is used to indicate the highest number or amount among a group. It can modify nouns or appear as a predicate.
我们班他读的书最多。
Wǒmen bān tā dú de shū zuì duō.
He has read the most books in our class.
这个月哪个城市下雨最多?
Zhège yuè nǎge chéngshì xiàyǔ zuì duō?
Which city had the most rain this month?
在所有科目中,她数学花的时间最多。
Zài suǒyǒu kēmù zhōng, tā shùxué huā de shíjiān zuì duō.
Among all subjects, she spends the most time on math.